Sir earlier when I asked about the same question of Changing BP frm VPT to MDU in Pearl City Exp many of our members said that PRS in MDU ll not change BPas there will be chance of misuse of smaller station quotas. So I shelved that idea. So better clarify with some admins/ members from Tamilnadu. Also if you dont change the BP TTE may allot your seat to wl/ RAC passenger as the train has stops in between VPT and MDU.